#include <iostream>
#include <cmath>
using namespace std;

int main() {
    double a,b,c;
    cin >> a >> b >> c;

    double x1,x2,deta;
    deta = (b*b) - 4*a*c;
    x1 = (-b + sqrt(deta)) / (2*a);
    x2 = (-b - sqrt(deta)) / (2*a);

    if (deta > 0)
    {
        if (x1 <= x2)
        {
            printf("x1=%.5f;x2=%.5f", x1, x2);
        }
        else if (x1 > x2)
        {
            printf("x1=%.5f;x2=%.5f", x2, x1);
        }
    }
    else if (int(deta) == 0)
    {
        printf("x1=x2=%.5f", x1);
    }
    else if (deta < 0)
    {
        cout << "No answer!";
    }
    
    return 0;
}